JPS6218657U - - Google Patents

Info

Publication number
JPS6218657U
JPS6218657U JP1985110399U JP11039985U JPS6218657U JP S6218657 U JPS6218657 U JP S6218657U JP 1985110399 U JP1985110399 U JP 1985110399U JP 11039985 U JP11039985 U JP 11039985U JP S6218657 U JPS6218657 U JP S6218657U
Authority
JP
Japan
Prior art keywords
fuel ratio
air
ratio sensor
detection result
cylinder
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP1985110399U
Other languages
English (en)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1985110399U priority Critical patent/JPS6218657U/ja
Priority to US06/886,067 priority patent/US4782690A/en
Publication of JPS6218657U publication Critical patent/JPS6218657U/ja
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
    • G01N27/403—Cells and electrode assemblies
    • G01N27/406—Cells and probes with solid electrolytes
    • G01N27/4065—Circuit arrangements specially adapted therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/008—Controlling each cylinder individually
    • F02D41/0087—Selective cylinder activation, i.e. partial cylinder operation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/14—Introducing closed-loop corrections
    • F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
    • F02D41/1493—Details
    • F02D41/1495—Detection of abnormalities in the air/fuel ratio feedback system
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/14—Introducing closed-loop corrections
    • F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
    • F02D41/1444—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases
    • F02D41/1454—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases the characteristics being an oxygen content or concentration or the air-fuel ratio
    • F02D41/1456—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases the characteristics being an oxygen content or concentration or the air-fuel ratio with sensor output signal being linear or quasi-linear with the concentration of oxygen

Description

【図面の簡単な説明】
第１図は本考案の基本概念図である。第２図〜
第１０図は本考案の空燃比検出装置の第１実施例
を示す図であり、第２図はその全体構成図、第３
図はその空燃比センサの分解斜視図、第４図はそ
の空燃比センサの断面図、第５図はそのコントロ
ールユニツトのブロツク図、第６図はその空燃比
検出回路の回路図、第７図はその空燃比検出回路
の検出電圧と空燃比との関係を示す図、第８図は
その係数演算プログラムおよび異常判別プログラ
ムのフローチヤート、第９図および第１０図はそ
の作用を説明するための検出電圧と酸素濃度の関
係を示す図である。第１１図は本考案の空燃比検
出装置の第２実施例の空燃比センサの断面図であ
る。第１２図は従来の空燃比検出装置の空燃比セ
ンサの出力特性を示す図である。 １……内燃機関、６……空燃比センサ、１２…
…コントロールユニツト（減速状態判別手段、設
定手段、係数演算手段、判別手段）。

Claims (1)

  1. 【実用新案登録請求の範囲】 (a) 機関の減速状態を判別する減速状態判別手
    段と、 (b) 減速時に燃料噴射気筒数を多段的に変化さ
    せる内燃機関の排気の空燃比を検出する空燃比セ
    ンサと、 (c) 減速時、各気筒の供給空燃比を所定の一定
    値に設定する設定手段と、 (d) 減速時の、全気筒噴射時の空燃比センサの
    検出結果をＶ１、所定の気筒のみ噴射されている
    時の空燃比センサの検出結果をＶ２、全気筒噴射
    停止時の空燃比センサの検出結果をＶ３としたと
    き、係数ＡをＡ＝（Ｖ３―Ｖ１）／（Ｖ３―Ｖ２
    ）で演算手段と、 (e) 該係数Ａに基づいて空燃比センサの正常・
    異常を判別する判別手段と、 を備えたことを特徴とする空燃比検出装置。
JP1985110399U 1985-07-17 1985-07-17 Pending JPS6218657U (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP1985110399U JPS6218657U (ja) 1985-07-17 1985-07-17
US06/886,067 US4782690A (en) 1985-07-17 1986-07-16 Air/fuel ratio detecting apparatus, and method of detecting normal and abnormal conditions of the sensor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1985110399U JPS6218657U (ja) 1985-07-17 1985-07-17

Publications (1)

Publication Number Publication Date
JPS6218657U true JPS6218657U (ja) 1987-02-04

Family

ID=14534818

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1985110399U Pending JPS6218657U (ja) 1985-07-17 1985-07-17

Country Status (2)

Country Link
US (1) US4782690A (ja)
JP (1) JPS6218657U (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013024199A (ja) * 2011-07-25 2013-02-04 Bosch Corp ラムダセンサの極希薄領域応答性診断方法及びコモンレール式燃料噴射制御装置
JP2013513053A (ja) * 2009-12-08 2013-04-18 ロベルト・ボッシュ・ゲゼルシャフト・ミト・ベシュレンクテル・ハフツング 個別シリンダλ制御における偏差の診断方法および装置

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3923737C2 (de) * 1989-07-18 1995-12-14 Gutmann Messtechnik Ag Verfahren zum Messen von Abgaswerten bei Kraftfahrzeugen mit geregeltem Drei-Wege-Katalysator und Lambdasonde
JP2846735B2 (ja) * 1990-11-30 1999-01-13 日本碍子株式会社 空燃比センサの出力補正方法
EP0616119B1 (de) * 1993-03-15 1997-06-18 Siemens Aktiengesellschaft Verfahren zur Überprüfung von Lambdasonden
DE4423344A1 (de) * 1994-07-04 1996-01-11 Bayerische Motoren Werke Ag Verfahren zur Erkennung von seitenverkehrt angeschlossenen Lambda-Sonden
JP3637099B2 (ja) * 1995-04-07 2005-04-06 本田技研工業株式会社 内燃エンジンのアイドル回転数制御装置
US5721375A (en) * 1996-11-13 1998-02-24 Ford Global Technologies, Inc. Method and apparatus for monitoring a valve deactivator on a variable displacement engine
US5993743A (en) 1997-03-26 1999-11-30 Spx Corporation Hand-held vehicle exhaust analyzer
DE10260335B4 (de) * 2002-05-29 2006-01-12 Hyundai Motor Co. Fehlfunktions-Detektionsverfahren für einen Kraftstofffüllstands-Sensor eines Fahrzeugs
US6860144B2 (en) * 2003-02-18 2005-03-01 Daimlerchrysler Corporation Oxygen sensor monitoring arrangement
JP4539211B2 (ja) * 2004-07-23 2010-09-08 日産自動車株式会社 内燃機関の制御装置
JP4688670B2 (ja) * 2005-12-20 2011-05-25 川崎重工業株式会社 内燃機関の燃焼制御装置および車両
JP2012007496A (ja) * 2010-06-22 2012-01-12 Toyota Motor Corp 内燃機関の制御装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5759039A (en) * 1980-09-25 1982-04-09 Toyota Motor Corp Working condition display process in internal combustion engine
JPS5946305A (ja) * 1982-09-08 1984-03-15 Ishikawajima Harima Heavy Ind Co Ltd 石炭だき二段間接加熱複合サイクル発電装置
JPS5967455A (ja) * 1982-10-08 1984-04-17 Hitachi Ltd 空燃比センサ
JPH065217B2 (ja) * 1985-03-07 1994-01-19 日産自動車株式会社 空燃比制御装置
JPS61244848A (ja) * 1985-04-22 1986-10-31 Nissan Motor Co Ltd 空燃比制御装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013513053A (ja) * 2009-12-08 2013-04-18 ロベルト・ボッシュ・ゲゼルシャフト・ミト・ベシュレンクテル・ハフツング 個別シリンダλ制御における偏差の診断方法および装置
JP2013024199A (ja) * 2011-07-25 2013-02-04 Bosch Corp ラムダセンサの極希薄領域応答性診断方法及びコモンレール式燃料噴射制御装置

Also Published As

Publication number Publication date
US4782690A (en) 1988-11-08

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